#405BBB#405BBB

#405BBB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.3% C 0.154 H 268.5°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#405BBB
RGB	rgb(64, 91, 187)
HSL	hsl(227, 49%, 49%)
HSV	hsv(227, 66%, 73%)
CMYK	cmyk(65.8%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(41.47, 21.43, -53.73)
CIE-LCH	lch(41.47, 57.85, 291.74°)
OKLab	oklab(50.33% -0.0039 -0.1542)
OKLCH	oklch(50.33% 0.154 268.5)
XYZ	xyz(14.8220, 12.1586, 48.5698)
Luminance	0.1216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BBB #BBA040

analogous

#4099BB #405BBB #6340BB

triadic

#405BBB #BB405B #5BBB40

tetradic

#405BBB #BB4099 #BBA040 #40BB63

square

#405BBB #BB4099 #BBA040 #40BB63

split-complementary

#405BBB #BB6340 #99BB40

monochromatic

#212F60 #30458D #405BBB #6C81CD #99A8DC

Accessibility & contrast

On white

6.12

#405BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#405BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BBB

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BBB	#FFFFFF	#000000	##FFFFFF
##405BBB	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2268BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405bbb;
/* rgb */ color: rgb(64, 91, 187);
/* oklch */ color: oklch(50.3% 0.154 268.5);

Tailwind

colors: {
  custom: {
    50: '#8289d0',
    500: '#405bbb',
    950: '#000000',
  },
}

SCSS

$custom: #405bbb;
$custom-light: #8289d0;
$custom-dark: #000000;

JSON

{
  "hex": "#405bbb",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 226.829,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5033,
    "c": 0.15421,
    "h": 268.5
  },
  "luminance": 0.1216
}

Semantic roles & 50–950 ramp

primary

#405BBB

secondary

#C8BB8F

accent

#BA4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #405BBB

Body copy rendered with the generated semantic roles for this colour.

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